以自合成的硼吖嗪(borazine)和全氢聚硅氮烷(perhydropolysilazane,PHPS)组成的混杂先驱体为原料,采用先驱体浸渍-裂解(PIP)工艺制备3D Cf/BN Si3N4复合材料,研究了PIP工艺循环次数对复合材料的力学性能和烧蚀性能的影响.结果表明,随着循环次数的增加,复合材料的基体逐渐致密,材料的密度随之提高,材料的弯曲强度和杨氏模量随之提高.进行四个循环时,密度达到1.50 g·cm-3,弯曲强度达到156.4 MPa,杨氏模量达到45.9 GPa.力学性能的增长规律与密度变化相一致.线烧蚀率随着致密度的提高而迅速下降.
参考文献
| [1] | H.F.Hu,Z.H.Chen,C.X.Feng,C.R.Zhang,Y.C.Song,Three-dimensional braided preform reinforced Si-C-N composites prepared by precursor pyrolysis,J.Mater.Sci.Lett.,17(1),73(1998) |
| [2] | K.Jian,Z.H.Chen,Q.S.Ma,W.W.Zheng,Effects of pyrolysis processes on the microstructures and mechanical properties of Cf/SiC composites using polycarbosilane,Mater.Sci.Eng.A,390(1～2),154(2005) |
| [3] | Q.S.Ma,Z.H.Chen,W.W.Zheng,H.F.Hu,Processing and characterization of three-dimensional carbon fibre reinforced Si-O-C composites via precursor pyrolysis,Mater.Sci.Eng.A,352(1～2),212(2003) |
| [4] | K.Sato,T.Suzuki,O.Funayama,T.Isoda,Fabrication of silicon nitride based composites by impregnation with perhydropolysilazane,J.Ceram.Soc.Jpn,100,450(1992) |
| [5] | H.Morozumi,K.Sato,A.Tezuka,H.Kaya,T.Isoda,Preparation of high strength ceramic fibre reinforced silicon nitride composites by a preceramic polymer impregnation method,Ceram.Int.,23,179(1997) |
| [6] | G.J.Qi,C.R.Zhang,H.F.Hu,C.C.Zhou,PIP preparation of silica fibre fabric reinforced silicon nitride-based composites using polyhydridomethylsilazane,Adv.Compos.Lett.,14(4),131 (2005) |
| [7] | C.G.Cofer,A.W.Saak,J.Economy,Carbon/boron nitride composites:an alternativeto carbon/carbon,Ceram.Eng.Sci.Proc.,16,663(1995) |
| [8] | S.Seghi,J.Lee,J.Economy,High density carbon fiber/boron nitride matrix composites:fabrication of compositeswith exceptional wear resistance,Carbon,43,2035(2005) |
| [9] | G.J.Qi,C.R.Zhang,H.F.Hu,S.Q.Wang,Y.B.Cao,Y.G.Jiang,Preparation of three-dimensional silica fiber reinforced silicon nitride composites using perhydropolysilazane as precursor,Mate.Lett.,59,3256(2005) |
| [10] | LI Hejun,Carbon/carbon composites,New Carbon Mater,16(2),79(2001)(李贺军,炭/炭复合材料,新型炭材料,16(2),79(2001)) |
| [11] | LUO Ruiying,Current status of research and application of C/C composites used for aeroplane breake and engine,Carbon Techniques,4,27(2001)(罗瑞盈,航空刹车及发动机用炭/炭复合材料的研究应用现状,炭素技术,4,27(2001)) |
| [12] | A.Samah,D.Paulmier,M.E.Mansori,Damage of carboncarbon composite surfaces under high pressure and shear strain,Surf.Coat.Technol.,120～121,636(1999) |
| [13] | Y.J.Lee,H.J.Joo,Investigation on ablation behavior of CFRC composites prepared at different pressure,Compos.Part A,35,1285(2004) |
| [14] | L.M.Manocha,S.Manocha,K.B.Patel,Oxidation behaviour of carbon/carbon composites impregnated with silica and silicon oxycarbide,Carbon,38,1481(2000) |
| [15] | Y.J.Lee,H.J.Joo,Ablation characteristics of carbon fiber reinforced carbon (CFRC) composites in the presence of silicon carbide (SiC) coating,Surf.Coat.Technol.,180～181,286(2004) |
| [16] | ZHOU Xingming,TANG Sufang,DENG Jingyi,LIU Wenchan,DU Haifeng,A thermal protective and heat-insulated integration material:carbon fibers and high-silica fibers reinforced C-SiC matrix composites,Chinese Journal of Materials Research,20(2),148(2006)(周星明,汤素芳,邓景屹,刘文川,杜海峰,碳-高硅氧纤维增强C-SiC防热隔热一体化材料,材料研究学报,20(2),148(2006)) |
| [17] | W.V.Hough,C.R.Guibert,G.T.Hefferan,Method for the synthesis of borazine,United States Patent,4150097(1979) |
| [18] | T.Isoda,H.Kaya,H.Nishii,Perhydropolysilazane precursors to silicon nitride ceramics,J.Inorg.Organomet.Polym.,2,151(1992) |
| [19] | K.Su,E.E.Remsen,G.A.Zank,L.G.Sneddon,Synthesis,characterization,and ceramic conversion reactions of borazine-modified hydridopolysilazanes:new polymeric precursors to SiNCB ceramic composites,Chem.Mater.,5,547(1993) |
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